Kevlar 49/Epoxy unidirectional

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· Kevlar 49/Epoxy UD· K49/Epoxy· AFRP Kevlar 49/Epoxy Unidirectional· afrp-kevlar-49-epoxy-ud

Kevlar 49/Epoxy unidirectional composite is a fiber-reinforced polymer made from DuPont Kevlar 49 aramid fibers aligned in a single direction (0°) and bonded in an epoxy matrix using prepreg layup manufacturing. This material balances exceptional tensile strength-to-weight ratio with impact resistance and damping characteristics inherent to aramid fibers, making it well-suited for applications demanding lightweight structural performance without the brittleness of carbon fiber composites. It is widely specified in aerospace, defense, and sporting goods industries where impact tolerance, vibration damping, and damage resistance outweigh the need for maximum stiffness, and its unidirectional ply format allows engineers to build custom laminate schedules for directional load optimization.

aerospace structural componentsimpact-resistant armor and protective systemssporting goods (helmets, paddles, protective gear)rotor blades and helicopter structuresmarine hulls and pressure vesselsvibration damping applications

Compliance & Regulations

?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Composite Layup1 ply · 0.13 mm total

Fiber Direction

+0°

Drag to rotate · Scroll to zoom · → = 0° reference

FiberDuPont Kevlar 49 Aramid

MatrixEpoxy

ProcessPrepreg layup

V_f60%

Ply Schedule

+0°Kevlar 49/Epoxy0.125 mm

Laminate Code

[0]T

Fiber angles relative to the 0° reference direction (red arrow in 3D view). 0° = longitudinal, 90° = transverse, ±45° = shear paths.

Property OverviewNormalized to typical max values

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Orientation

Property	Value	Unit	Conditions
Compressive Strength(σc)	414.0	MPa	L
Elongation at Break(εf)	1.800	-	—
Poisson's Ratio(ν)2 entries	0.3400	-	notes
↳	0.3400	-	—
Shear Modulus(G)	2.070	GPa	notes
Ultimate Tensile Strength(σUTS)2 entries	1.380	GPa	—
↳	30.00	MPa	T
Young's Modulus(E)2 entries	76.00	GPa	L
↳	76.00	GPa	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions
Maximum Service Temperature(Tmax)	423	K	—
Coefficient of Thermal Expansion(α (CTE))2 entries	0.0000540	1/K	T
↳	-0.00000400	1/K	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)2 entries	1.380	kg/m³	—
↳	1.380	kg/m³	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

Quality & Standards

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Kevlar 49/Epoxy unidirectional

Mechanical Properties

Thermal Properties

Physical Properties

Regulatory Screening

Environmental

Safety & Biocompatibility

Quality & Standards